JP5853504B2 - Dial assembly and clock - Google Patents

Description

  The present invention relates to a dial plate assembly and a timepiece.

  2. Description of the Related Art Conventionally, a wristwatch is known that includes two dials arranged via a gap and a movement that rotatably supports an hour hand, a minute hand, and a second hand (see, for example, Patent Document 1). In the wristwatch described in Patent Document 1, a positioning pin that regulates the positional relationship (height relationship) between two dials is fixed to the movement. That is, in the wristwatch described in Patent Document 1, the positional relationship between the two dials is regulated via the positioning pin fixed to the movement. For this reason, the size (gap length) of the gap between the two dials is made constant (invariable).

  In order to apply the wristwatch described in Patent Document 1 to, for example, a chronograph having a small hand in addition to an hour hand, a minute hand, and a second hand, there is a case where the small hand is to be arranged in a gap between two dials. However, in this case, depending on the position (height) of the small needle, as described above, the size of the gap is constant and cannot be changed. As a result, it is impossible to dispose the small needle in the gap. There was a problem.

JP 2010-145206 A

  An object of the present invention is to provide a dial plate assembly capable of reliably forming a space in which the small hands rotate according to the position of the small hands with a simple configuration, and a timepiece including such a dial plate assembly. There is.

Such an object is achieved by the present invention described below.
The dial plate assembly of the present invention is a dial plate assembly housed in a watch case,
A first dial having light transparency;
A second dial disposed on the back side of the first dial;
A ring member disposed on the front side of the first dial and having a ring shape along an edge of the first dial;
At least one spacer disposed between the first dial and the second dial and having a ring shape along an edge of the first dial;
At least one small hand rotates at a position different from the hour hand and the minute hand in the space surrounded by the first dial, the second dial, and the spacer,
On the surface side of the spacer, a first step portion and a second step portion are provided at different positions along the circumferential direction of the spacer ,
Wherein the first step portion first dial is disposed, Ri Contact said ring member is disposed in said second step,
The first step portion is characterized by being lowered by the thickness of the first dial .
Thereby, the space where the said small needle rotates according to the position of a small needle with a simple structure can be formed reliably.

In the dial plate assembly of the present invention, it is preferable that the spacer has a stepped portion having a different thickness, and the first dial is disposed on the stepped portion.
As a result, the dial assembly can be made relatively thin.
In the dial plate assembly of the present invention, the first dial is a function in which the hour hand and the minute hand are pointed to,
It is preferable that the second dial plate be a function indicated by the small hands.
Thereby, time can be confirmed by the position which an hour hand and a minute hand point, respectively. In addition, when the second dial plate has a function of displaying the day of the week, for example, the day of the week can be confirmed by the position indicated by the small hand.

The dial assembly of the present invention, the dial assembly, which together with the movement of two of the small hand of the rotatably supporting each of which is housed in said case,
The second dial plate includes a first display unit indicated by one of the two small hands,
It is preferable to have the 2nd display part which the other small needle points.
Thereby, for example, one of the first display unit and the second display unit can be used as a 24-hour display unit, and the other can be used as a day-of-week display unit.

In the dial assembly of the present invention, the first dial is formed with a first opening penetrating through the portion facing the first display portion, and the second display portion facing. It is preferable that a second opening that penetrates the part is formed in the part.
Accordingly, the first display portion and one small needle can be visually recognized through the first opening portion, and the second display portion and the other small needle can be visually recognized through the second opening portion. .

In the dial assembly of the present invention, in the case, a solar cell is disposed on the back side of the second dial,
The second dial plate is preferably light transmissive.
Thereby, the light which permeate | transmitted the 1st dial can further permeate | transmit the 2nd dial, and is received by a solar cell.

In the dial plate assembly of the present invention, in the case, a solar cell having a light receiving surface for receiving light is disposed on the back side of the second dial plate, and the light receiving surface is divided into a plurality of regions. And
It is preferable that at least one of the first dial plate, the second dial plate, the spacer, and the ring member has a mask portion that overlaps a boundary portion between the adjacent regions in plan view.
Thereby, a boundary part can be hidden and, therefore, the aesthetics of a timepiece are improved.

In the dial plate assembly of the present invention, it is preferable that the dial plate assembly further includes a regulating unit that regulates a positional relationship between the first dial plate, the second dial plate, the spacer, and the movement.
Thus, a first dial, the second dial, the spacer, these members to each other of the movement is reliably fixed, Ru can be reliably prevented from being displaced during use of the watch.
In the dial plate assembly of the present invention, the first dial plate has a plate-like first main body portion and a first projecting piece provided outward at an edge of the first main body portion. A protrusion is provided on the back surface side of the ring member, the first protrusion is disposed on the first step portion, and the protrusion is disposed on the second step portion. preferable.
In the dial plate assembly of the present invention, the first projecting piece has a first defect portion, and the first stepped portion is provided with a pin that can be inserted into the first defect portion. preferable.
The dial assembly of the present invention comprises a movement that rotatably supports the small hands and is disposed on the back side of the second dial, wherein the ring member and the first dial are each It is preferable that the spacer and the second dial plate are respectively attached to the movement.
The timepiece of the present invention includes a dial assembly of the present invention,
A movement for rotatably supporting an hour hand and a minute hand, and for rotatably supporting at least one small hand at a position different from the hour hand and the minute hand;
And a case in which the dial assembly and the movement are stored.
Thereby, the space where the said small needle rotates according to the position of a small needle with a simple structure can be formed reliably.
According to the present invention, there is provided a dial plate assembly capable of reliably forming a space in which the small hand rotates according to the position of the small hand with a simple configuration, and a timepiece including such a dial plate assembly. be able to.

It is a perspective view which shows 1st Embodiment at the time of applying the timepiece of this invention provided with the dial assembly of this invention to a wristwatch. It is sectional drawing of the wristwatch shown in FIG. It is the disassembled perspective view which looked at the dial plate assembly in FIG. 1 from the front side. It is the disassembled perspective view which looked at the dial assembly in FIG. 1 from the back side. It is a disassembled perspective view which shows 2nd Embodiment at the time of applying the timepiece of this invention provided with the dial assembly of this invention to a wristwatch.

Hereinafter, a dial assembly and a timepiece according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
<First Embodiment>
FIG. 1 is a perspective view showing a first embodiment when the timepiece of the invention having the dial assembly of the invention is applied to a wristwatch, FIG. 2 is a sectional view of the wristwatch shown in FIG. 1, and FIG. 1 is an exploded perspective view of the dial plate assembly in FIG. 1 viewed from the front side, and FIG. 4 is an exploded perspective view of the dial plate assembly in FIG. 1 viewed from the back side. In the following, for convenience of explanation, the upper side in FIGS. 1 to 4 (same for FIG. 5) is “upper”, “upper” or “table”, and the lower side is “lower”, “lower” Say back.

  A wristwatch (hereinafter simply referred to as “timepiece”) 1 shown in FIG. 1 includes a trunk (case) 2, a back cover 3, a cover glass (windshield) 5, and a band 20. In addition, as shown in FIG. 2, in the internal space 50 of the timepiece 1 (the space surrounded by the case 2, the back cover 3, and the cover glass 5), the dial plate assembly is sequentially arranged from the side where the cover glass 5 is provided. The solid 60, the solar cell 70, and the movement 9 are accommodated. In addition, an hour hand 101, a minute hand 102, and a second hand 103, which are hands (hands) 10, are rotatably supported on the movement 9. In addition to the hour hand 101, the minute hand 102, and the second hand 103, the pointer 10 includes a 24-hour hand (small hand) 104 and a day-of-week hand (small hand) 105. The 24-hour hand 104 and the day-of-week hand 105 are also included in the movement 9. It is rotatably supported. The pointer 10 is housed in the internal space 50 of the timepiece 1 together with the movement 9. Hereinafter, the configuration of each unit will be described.

  As shown in FIG. 1, the trunk | drum 2 is comprised by the member made circular. The cover glass 5 is mounted and fixed in an airtight and liquidtight manner on the front side portion of the barrel 2, and the back cover 3 is mounted and fixed in an airtight and liquidtight manner on the rear side portion. In addition, it does not specifically limit as a fixing method of the cover glass 5, For example, the method by adhesion | attachment (adhesion with an adhesive agent or a solvent) etc. are mentioned. Moreover, it does not specifically limit as a fixing method of the back cover 3, For example, the method by screwing, the method by fitting, etc. are mentioned.

A winding stem pipe (not shown) is fitted into the outer peripheral portion 23 of the trunk 2, and the crown 12 is rotatably provided on the winding stem pipe. By rotating the crown 12, the torque is transmitted to the movement 9. As a result, the pointer 10 is driven to rotate, so that the time to be displayed can be adjusted.
In addition, the outer peripheral portion 23 of the body 2 is provided with lugs 24 as connecting portions to which the band 20 is connected on both sides via the central axis. The band 20 is used when the watch 1 is worn on the arm.

The cover glass 5 has a disk shape and is made of a transparent member. The “transparent member” refers to a member having transparency with a visible light transmittance of about 50% or more. “Transparent” includes colorless and transparent as well as colored (colored) transparency.
It does not specifically limit as a constituent material of the cover glass 5, For example, inorganic glass etc. are mentioned. Examples of the inorganic glass include soda lime glass, borosilicate glass, hard rex (reinforced inorganic glass), clear rex (non-reflective treatment), spinel glass, sapphire glass, and the like. Since inorganic glass has high material strength (strength), for example, deformation and cracking due to pressurization and impact can be reduced, scratches are difficult to be made, and specularity can be improved. Thereby, the intensity | strength of cover glass 5 itself can be made high and visibility can be improved. In addition, inorganic glass can be easily bonded with an adhesive, and therefore there is a wide range of choices of adhesive types and bonding methods that can provide high adhesive strength.

The back cover 3 is composed of a disk-shaped member. A packing may be interposed between the back cover 3 and the body 2. Thereby, when the back cover 3 is attached to the cylinder 2, the packing is compressed, and the airtightness and liquid-tightness between the back cover 3 and the cylinder 2 can be reliably maintained.
The constituent materials of the body 2, the back cover 3, and the pointer 10 are not particularly limited. For example, various metal materials (including alloys) such as stainless steel, titanium or titanium alloy, and various resin materials (plastic materials). Etc. Among these, a metal material is usually preferably used because of its excellent aesthetic appearance and strength. The trunk | drum 2, the back cover 3, and the needle | hook 10 may be comprised with the mutually same material, and may be comprised with a different material.

  A disc-shaped movement 9 is fixed to the back cover 3. As shown in FIG. 2, the movement 9 includes a shaft 91 that rotatably supports the hour hand 101, the minute hand 102, and the second hand 103, a shaft 92 that rotatably supports the 24-hour hand 104, and a shaft 93 that rotatably supports the day hand 105. Have. The shaft 91 is disposed at the center of the movement 9, and the shafts 92 and 93 are disposed at positions different from the shaft 91, that is, spaced apart around the shaft 91.

  The movement 9 drives (rotates) the hour hand 101, the minute hand 102, and the second hand 103 through the shaft 91, and drives the 24-hour hand 104 through the shaft 92 by the electric power supplied from the solar cell 70, A mechanism for driving the day hand 105 via the shaft 93 is incorporated. The mechanism is not particularly limited. For example, an electric double layer capacitor for storing the electromotive force of the solar battery 70, a lithium ion secondary battery, a crystal oscillator as a time reference source, and an oscillation frequency of the crystal oscillator. A semiconductor integrated circuit that generates a driving pulse for driving the watch, a step motor that drives the wheel train mechanism every second in response to this driving pulse, and a wheel train mechanism that transmits the movement of the step motor to the pointer Etc. can be used.

  On the movement 9, a solar cell 70 having a disk shape (plate shape) is stacked and installed. The solar cell 70 is electrically connected to the movement 9, can generate electric power by receiving light, and can supply the electric power to the movement 9. As the solar cell 70, for example, a p-type semiconductor and an n-type semiconductor stacked and joined can be used. A p-type semiconductor is a high-purity silicon semiconductor in which a small amount of a trivalent element such as boron is mixed. An n-type semiconductor is a pentavalent semiconductor such as arsenic in a high-purity silicon semiconductor. These elements are mixed in a very small amount. When the solar cell 70 having such a configuration is irradiated with light, electrons and holes are generated inside the silicon due to the photoelectric effect. Moreover, in the pn junction part which is a boundary part of a p-type semiconductor and an n-type semiconductor, the positively charged hole among the generated electrons and holes is an electron having a negative charge to the p-type semiconductor side. Is separated and guided to the n-type semiconductor side. Thereby, each semiconductor is charged positively and negatively, and a potential difference is generated, so that electric power can be supplied to the movement 9. The vicinity of the pn junction is a depletion layer.

Further, the solar cell 70 is formed with insertion holes 701 through which the shafts 91 to 93 are respectively inserted at positions corresponding to the shafts 91 to 93 of the movement 9 (see FIG. 2).
As described above, the dial assembly 60 is housed in the internal space 50 (body 2) together with the movement 9 and the solar cell 70. As shown in FIGS. 2 to 4, the dial assembly 60 includes a ring member (dial ring) 4, a first dial 6, a spacer 7, and a second dial 8. These members are assembled in this order from the front side.

  The dial assembly 60 maintains the assembled state, that is, restricts the positional relationship between the ring member 4, the first dial 6, the spacer 7, the second dial 8, and the movement 9. A regulating means 15 is provided. By means of this restricting means 15, these members of the ring member 4, the first dial plate 6, the spacer 7, the second dial plate 8 and the movement 9 are securely fixed to each other so that they are displaced during use of the timepiece 1. It can be surely prevented. The configuration of the restricting means 15 will be described later.

  As shown in FIGS. 3 and 4, the first dial 6 is directed outwardly to a disc-shaped main body (first main body) 61 and an outer peripheral portion (edge) 611 of the main body 61. Projecting pieces (first projecting pieces) 62a, 62b, 62c, 62d. In the first dial 6, the main body 61 and the projecting pieces 62 a to 62 d are integrally formed and have light transmission as a whole. Thereby, when light is irradiated from the front side, the light can pass through the first dial 6. This transmitted light is received by the solar cell 70. In addition, it does not specifically limit as a constituent material, For example, the plastic material comprised by the material containing at least 1 sort (s) selected from a polycarbonate (PC) and an acrylonitrile butadiene styrene copolymer (ABS resin), others, Soda glass or quartz glass can be used.

An insertion hole 63 through which the shaft 91 of the movement 9 is inserted is formed at the center of the main body 61. When the shaft 91 of the movement 9 is inserted through the insertion hole 63, the hour hand 101, the minute hand 102, and the second hand 103 supported by the shaft 91 are arranged on the front side of the first dial 6 (see FIG. 2). .
A plurality of plate-like display portions (scales) 64 having a function of displaying the time by pointing the hour hand 101, the minute hand 102, and the second hand 103 are arranged on the front surface 612 of the main body 61. These display parts 64 are intermittently arranged along the circumferential direction of the main body part 61, and time “1”, “2”, “4”, “5”, “7”, “8”, It corresponds to “9”, “11”, “12”. The time can be confirmed by the positions where the hour hand 101, the minute hand 102, and the second hand 103 point to the display unit 64, respectively.

Each display unit 64 is fixed to the main body unit 61. The fixing method is not particularly limited, and examples thereof include a caulking method, a fitting method, and an adhesion (adhesion with an adhesive or a solvent) method.
The constituent material of each display unit 64 is not particularly limited, and for example, the same constituent material as that of the body 2 can be used.

  In the main body 61, a first opening 65 is formed near the position corresponding to “6” of the time, and a second opening 66 is formed near the position corresponding to “10” of the time. A third opening 67 is formed near the position corresponding to “3”. Each of the first opening 65, the second opening 66, and the third opening 67 is a through hole that penetrates the main body 61 in the thickness direction.

The first opening 65 is circular in plan view and faces the first display portion 83 of the second dial 8. Through the first opening 65, the first display unit 83 and the 24-hour hand 104 supported by the shaft 92 of the movement 9 can be visually recognized.
The second opening 66 is substantially semicircular in plan view and faces the second display portion 84 of the second dial 8. The second display portion 84 and the day of the week hand 105 supported by the shaft 93 of the movement 9 can be visually recognized through the second opening 66.

The third opening 67 has a quadrangular shape in plan view and faces a “date (date)” (not shown) displayed by the movement 9. The date can be visually recognized through the third opening 67.
The projecting pieces 62 a to 62 d are arranged at equal intervals along the circumferential direction of the outer peripheral portion of the main body portion 61. In addition, each of the projecting pieces 62 a to 62 d has a long plate shape along the circumferential direction of the outer peripheral portion of the main body portion 61. Each of the projecting pieces 62a to 62d has a defect portion 621 formed in the middle of the longitudinal direction. Each deficient portion 621 is a portion that becomes a part of the restricting means 15 together with a pin 721 of the spacer 7 described later, together with the pin 721.

  As shown in FIGS. 3 and 4, the second dial 8 is disposed on the back side of the first dial 6. The second dial plate 8 has an annular main body (second main body) 81 and a projecting piece (second projecting piece) formed on the outer peripheral portion (edge) 811 of the main body 81 so as to protrude outward. ) 82 a, 82 b, 82 c, 82 d, and a first display unit 83, a second display unit 84, and a third display unit 85 that are formed inwardly projecting from the inner peripheral portion 812 of the main body 81. doing. In the second dial plate 8, a main body portion 81, projecting pieces 82 a to 82 d, a first display portion 83, a second display portion 84, and a third display portion 85 are integrally formed. As a whole, it has optical transparency. As a result, the light transmitted through the first dial 6 can further pass through the second dial 8 and is received by the solar cell 70 disposed on the back side of the second dial 8. . In addition, it does not specifically limit as a constituent material of the 2nd dial 8, For example, the thing similar to the constituent material of the main-body part 61 of the 1st dial 6 can be used.

The first display unit 83 is configured by a plate-like body that is circular in plan view. An insertion hole 831 through which the shaft 92 of the movement 9 is inserted is formed at the center of the first display portion 83. By inserting the shaft 92 of the movement 9 through the insertion hole 831, the 24-hour hand 104 supported by the shaft 92 is arranged on the front side of the first display portion 83.
Further, a rib 833 having a ring shape along the circumferential direction is formed on the front surface 832 of the first display portion 83 so as to protrude. On the rib 833, numerals (1) to "24" (not shown) are respectively attached. The time can be confirmed by pointing one of these numbers to the 24-hour hand 104 (one small hand).

The second display unit 84 is configured by a plate-like body that is semicircular in plan view. An insertion hole 841 through which the shaft 93 of the movement 9 is inserted is formed at the center of the arc of the second display portion 84. When the shaft 93 of the movement 9 is inserted through the insertion hole 841, the day hand 105 supported by the shaft 93 is arranged on the front side of the second display portion 84 (see FIG. 2).
In addition, an arc-shaped rib 843 is formed on the front surface 842 of the second display portion 84 so as to protrude. On this rib 843, “Mon (month)”, “Tue (Tue)”, “Wed (Wed)”, “Thu (Thurs)”, “Fri (Fri)”, “Sat (Sat)”, “ The letters “Sun (day)” (not shown) are added. The day of the week can be confirmed by pointing the day of the week hand 105 (the other small hand) to any of these characters.

As shown in FIG. 2, the first display portion 83 and the second display portion 84 have the same position in the thickness direction of the second dial 8. Thereby, for example, the total thickness of the dial assembly 60 can be suppressed, and as a result, the timepiece 1 can be made relatively thin.
The 3rd display part 85 is comprised by the plate-shaped body which makes a frame shape by planar view. The third display portion 85 is disposed so as to face the back side of the third opening 67 of the first dial 6. Then, through the third opening 67 of the first dial plate 6 and the third display portion 85 of the second dial plate 8 in order, the “date” displayed on the movement 9 on the far side is changed. It can be visually recognized.

  Each of the projecting pieces 82 a to 82 d has a long plate shape along the circumferential direction of the outer peripheral portion of the main body portion 81. Each of the projecting pieces 82a to 82d has a defect portion 821 in the middle in the longitudinal direction. A pin 95a fixed to the movement 9 is inserted into the missing portion 821 of the protruding piece 82a, and a pin 95b fixed to the movement 9 is inserted into the missing portion 821 of the protruding piece 82b. The pin 95d fixed to the movement 9 is inserted into 821, and the pin 95d fixed to the movement 9 is inserted into the missing portion 821 of the projecting piece 82d. Thereby, the positional relationship between the second dial plate 8 and the movement 9 is restricted. Thus, each deficient portion 821 is a portion that becomes a part of the regulating means 15.

As shown in FIGS. 2 to 4, an annular (ring-shaped) spacer 7 is arranged between the first dial plate 6 and the second dial plate 8.
As shown in FIG. 3, first stepped portions (stepped portions) 72 a, 72 b, 72 c and 72 d and second stepped portions 73 a and 73 b are formed on the front surface 71 of the spacer 7. The first step portions 72 a to 72 d are arranged at equal intervals along the circumferential direction of the spacer 7. Further, the second stepped portions 73a and 73b are disposed on opposite sides of the spacer 7 at the positions different from the first stepped portions 72a to 72d via the central axis.

  Each of the first step portions 72a to 72d is a portion where the thickness of the spacer 7 is different by the thickness of the first dial 6, that is, is reduced (decreased). Then, the projecting piece 62a of the first dial 6 enters (is arranged) into the first stepped portion 72a, and the projecting piece 62b enters into the first stepped portion 72b, and enters the first stepped portion 72c. Can enter the protrusion 62c, and the protrusion 62d can enter the first stepped portion 72d. As a result, the front surface 612 of the first dial 6 and the front surface 71 of the spacer 7 are arranged on the same surface, so that the dial assembly 60 can be thinned.

  In addition, pins 721 are formed so as to protrude from the first step portions 72a to 72d. The pin 721 of the first stepped portion 72a is fitted (inserted) into the missing portion 621 of the protruding piece 62a of the first dial plate 6, and the pin 721 of the first stepped portion 72b is missing of the protruding piece 62b. The pin 721 of the first stepped portion 72c fits into the missing portion 621 of the projecting piece 62c, and the pin 721 of the first stepped portion 72d fits into the missing portion 621 of the projecting piece 62d. Get stuck. Thereby, the positional relationship between the first dial 6 and the spacer 7 is regulated.

The second stepped portions 73a and 73b are portions where the thickness of the spacer 7 is changed by the amount of protrusions 43a and 43b of the ring member 4 described later. The protrusion 43a of the ring member 4 is inserted into the second stepped portion 73a, and the protrusion 43b of the ring member 4 is inserted into the second stepped portion 73b.
In addition, pins 731 are formed to project from the second stepped portions 73a and 73b, respectively. Each pin 731 fits into a recess (guide hole) 431 of the protrusions 43 a and 43 b of the ring member 4 and functions as a part of the regulating means 15 together with each recess 431.

As shown in FIG. 4, protrusions 75 a and 75 b are formed to protrude on the back surface 74 of the spacer 7. The protrusion 75a and the protrusion 75b are disposed on opposite sides of the spacer 7 with the central axis therebetween.
The protrusions 75a and 75b are each formed with a recess 751 in which a part thereof is recessed (recessed). Then, the pin 94 of the movement 9 is fitted in each recess 751. Thereby, the positional relationship between the spacer 7 and the movement 9 is regulated. As described above, the concave portions 751 of the protrusions 75a and 75b function as a part of the regulating means 15, respectively.

The constituent materials of the spacer 7 and the ring member 4 are not particularly limited, and various metal materials and various resin materials can be used, for example.
As shown in FIGS. 3 and 4, the ring member 4 is disposed on the front side of the first dial 6. The ring member 4 is a member having a ring shape along the outer peripheral portion 611 of the main body portion 61 of the first dial 6.

As shown in FIG. 2, the ring member 4 has a thickness that gradually decreases inward, whereby an inclined surface 41 is formed. For example, a scale can be added to the inclined surface 41. Thereby, the ring member 4 can also have a function as a dial.
Further, as shown in FIG. 4, protrusions 43 a and 43 b are formed to protrude on the surface 42 on the back side of the ring member 4. The protrusion 43 a and the protrusion 43 b are disposed on the opposite sides with respect to the center axis of the ring member 4.

Moreover, the protrusions 43a and 43b are each formed with a recess 431 in which a part thereof is recessed. And the pin 731 on the level | step-difference parts 73a and 73b of the spacer 7 fits in each recessed part 431, respectively. Thereby, the positional relationship between the ring member 4 and the spacer 7 is regulated.
As described above, the positional relationship between the first dial 6 and the spacer 7 is restricted, and the positional relationship between the spacer 7 and the movement 9 is also restricted. Furthermore, the positional relationship between the ring member 4 and the spacer 7 is also restricted. In this way, the positional relationship among the first dial plate 6, the ring member 4, and the movement 9 is collectively regulated via the spacer 7.

As described above, the positional relationship between the second dial plate 8 and the movement 9 is also restricted.
Therefore, in the timepiece 1, the members of the ring member 4, the first dial plate 6, the spacer 7, the second dial plate 8, and the movement 9 are securely fixed by the regulating means 15. This reliably prevents the member from shifting during use of the timepiece 1.

  In the dial assembly 60 positioned and assembled as described above, as shown in FIG. 2, a space (small needle) surrounded by the first dial 6, the second dial 8, and the spacer 7 is used. A movable space 601 is formed. In this space 601, the 24-hour hand 104 and the day hand 105 are arranged and stored. The 24-hour hand 104 and the day of the week hand 105 can be rotated in the space 601 by the operation of the movement 9.

As described above, in the timepiece 1, the 24-hour hand 104 and the day hand 105 can be rotated with a simple configuration in which the first dial plate 6, the second dial plate 8, and the spacer 7 are assembled by overlapping. The space 601 can be reliably formed.
The formed space 601 has a size corresponding to the positions of the 24-hour hand 104 and the day of the week hands 105. That is, if the 24-hour hand 104 and the day of the week hand 105 are located at the same height, the dial assembly 60 with one spacer 7 arranged as shown in the figure (this embodiment) may be used. . Unlike the illustrated configuration, when one of the 24-hour hand 104 and the day hand 105 is located higher than the other, the dial assembly 60 in which a plurality of spacers 7 are overlaid may be used. . Thereby, the size of the space 601 can be increased.

Second Embodiment
FIG. 5 is an exploded perspective view showing a second embodiment when the timepiece of the present invention including the dial assembly of the present invention is applied to a wristwatch. In the dial assembly in FIG. 5, the first dial, the second dial, and the spacer are omitted.
Hereinafter, a dial plate assembly and a timepiece according to a second embodiment of the present invention will be described with reference to the drawings. However, the description will focus on differences from the above-described embodiment, and the description of the same matters will be omitted. .

This embodiment is the same as the first embodiment except that the configuration of the ring member is different.
As shown in FIG. 5, the ring member 4 </ b> A includes an outer ring 44, an inner ring 45 disposed concentrically on the inner side of the outer ring 44, and four rods that connect the outer ring 44 and the inner ring 45. Connecting portion 46. These connecting portions 46 are arranged radially.

Further, in the solar cell 70, a light receiving surface 702 that receives light irradiated from the front side is divided into a plurality of regions (four in the configuration shown in FIG. 5). For this reason, linear boundary portions 703 are formed between adjacent light receiving surfaces 702 (regions). Each boundary part 703 is used as an electrode part of the solar cell 70.
In the timepiece 1, each connecting portion 46 faces the boundary portion 703, that is, can overlap the boundary portion 703 in a plan view, and thus the boundary portion 703 can be hidden. Thus, the connecting portion 46 also functions as a mask portion that hides the boundary portion 703. This mask portion improves the appearance (aesthetic appearance) of the timepiece 1, that is, improves aesthetics.

The “mask portion” is provided in the ring member 4A in the present embodiment, but is not limited to this. For example, the first dial plate 6, the second dial plate 8, the spacer 7, and the ring member 4A. What is necessary is just to be provided in at least one of them.
As mentioned above, although the dial assembly and timepiece of the present invention have been described with respect to the illustrated embodiment, the present invention is not limited thereto, and each part constituting the dial plate assembly and the timepiece has the same function. It can be replaced with any configuration that can be exhibited. Moreover, arbitrary components may be added.

In addition, the dial assembly and the timepiece of the present invention may be a combination of any two or more configurations (features) of the above embodiments.
In the second dial plate, the first display unit and the second display unit have the same position in the thickness direction of the second dial plate in each of the embodiments. For example, the position of the second dial plate in the thickness direction may be different from each other.

  1 …… Wristwatch (clock) 2 …… Body (case) 23 …… Outer periphery 24 …… Lug 3 …… Back cover 4, 4A …… Ring member (dial ring) 41 …… Inclined surface 42 …… Back side surface 43a, 43b ...... Projection 431 ...... Recess 44 ...... Outer ring 45 ...... Inner ring 46 ...... Connecting part 5 ...... Cover glass (windshield) 6 ...... First dial 61 ...... Main body (first Main body part) 611 ...... Outer peripheral part (edge part) 612 ...... Front side surface 62a, 62b, 62c, 62d .... Projection piece (first projection piece) 621 .... Defect part 63 ... Insertion hole 64 ... Display part (Scale) 65 …… First opening 66 …… Second opening 67 …… Third opening 7 …… Spacer 71 …… Front side surfaces 72a, 72b, 72c, 72d …… First step Part (stepped part) 721 …… pins 73a, 73b …… Second step portion 731 ... Pin 74 ... Back side 75a, 75b ... Projection 751 ... Recess 8 ... Second dial plate 81 ... Main body (second main body) 811 ... Outer peripheral part (Edge part) 812 ... Inner peripheral part 82a, 82b, 82c, 82d ... Projection piece (second projection piece) 821 ... Defect part 83 ... First display part 831 ... Insertion hole 832 ... Front side Surface 833 …… Rib 84 …… Second display portion 841 …… Insertion hole 842 …… Front side surface 843 …… Rib 85 …… Third display portion 9 …… Movement 91, 92, 93 …… Shaft 94, 95a, 95b, 95c, 95d …… pin 10 …… pointer (needle) 101 …… hour hand 102 …… minute hand 103 …… second hand 104 …… 24 hour hand (small hand) 105 …… day hand (small hand) 12 …… ryu Zu 15 …… Regulatory means 20 …… Ba De 50 ...... interior space 60 ...... dial assembly 601 ...... space (small hand moving space) 70 ...... solar cell 701 ...... insertion hole 702 ...... receiving surface 703 ...... boundary

Claims (12)

A dial plate assembly housed in a watch case,
A first dial having light transparency;
A second dial disposed on the back side of the first dial;
A ring member disposed on the front side of the first dial and having a ring shape along an edge of the first dial;
At least one spacer disposed between the first dial and the second dial and having a ring shape along an edge of the first dial;
At least one small hand rotates at a position different from the hour hand and the minute hand in the space surrounded by the first dial, the second dial, and the spacer,
On the surface side of the spacer, a first step portion and a second step portion are provided at different positions along the circumferential direction of the spacer ,
Wherein the first step portion first dial is disposed, Ri Contact said ring member is disposed in said second step,
The dial assembly according to claim 1, wherein the first step portion is lowered by the thickness of the first dial .   The dial assembly according to claim 1, wherein the spacer has a stepped portion having a different thickness, and the first dial is disposed on the stepped portion. The first dial is a function in which the hour hand and the minute hand are pointed to,
The dial assembly according to claim 1 or 2, wherein the second dial has a function indicated by the small hands. The dial plate assembly is housed in the case together with a movement that rotatably supports the two small hands,
The second dial plate includes a first display unit indicated by one of the two small hands,
The dial plate assembly according to claim 3, further comprising a second display portion indicated by the other small hand.   The first dial is formed with a first opening that penetrates the portion where the first display portion faces, and a second opening that penetrates the portion where the second display portion faces. The dial assembly according to claim 3, wherein an opening is formed. In the case, a solar cell is disposed on the back side of the second dial,
The dial assembly according to any one of claims 1 to 5, wherein the second dial has light transparency. In the case, a solar cell having a light receiving surface for receiving light is disposed on the back side of the second dial, and the light receiving surface is divided into a plurality of regions.
The at least one of the first dial plate, the second dial plate, the spacer, and the ring member has a mask portion that overlaps a boundary portion between the adjacent regions in a plan view. The dial assembly according to any one of the above.   The dial plate assembly according to any one of claims 1 to 7, further comprising restricting means for restricting a positional relationship between the first dial, the second dial, the spacer, and the movement. The first dial has a plate-like first main body portion, and a first projecting piece provided outward at an edge of the first main body portion,
On the back side of the ring member, a protrusion is provided,
The first protrusion is disposed on the first stepped portion;
The dial assembly according to any one of claims 1 to 8 , wherein the protrusion is disposed on the second step portion. The first projecting piece has a first defect portion,
The dial assembly according to claim 9 , wherein the first step portion is provided with a pin that can be inserted into the first defect portion. A movement that rotatably supports the small hands and is arranged on the back side of the second dial,
The ring member and the first dial are each attached to the spacer,
The dial assembly according to any one of claims 1 to 10 , wherein the spacer and the second dial are respectively attached to the movement. A dial plate assembly according to any one of claims 1 to 11 ,
A movement for rotatably supporting an hour hand and a minute hand, and for rotatably supporting at least one small hand at a position different from the hour hand and the minute hand;
A timepiece comprising a case in which the dial plate assembly and the movement are stored.

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